import * as logger from './log'
import { mqttHandler } from './MqttDispatcher'
import { HasInTopic } from './AItem'
import { AHomematicItem } from './AHomematicItem'
import { MaxWindowContact } from './MaxWindowContact';
import { ThermostatExport, ExportType } from './Export'

const WINDOW_OPEN_TEMPERATURE = 4.5


type WindowContactHolder = {
    windowContact : MaxWindowContact
    state : string
}

export class MaxThermostat extends AHomematicItem implements HasInTopic {
    private actionTopic: string
    private deviceFeedbackTopic: string
    private temperatureFeedbackTopic: string
    private temperatureTopic: string
    private temperature: number
    private windowContactMap: { [key:string]: WindowContactHolder }
    private windowOpen: boolean
    //    Thermostat: homegear/instance1/set/3/1/SET_TEMPERATURE

    getInTopic() : string {
        return this.temperatureTopic
    }

    exportItem() : ExportType|null {
        return ThermostatExport(this.itemId, this.label, this.temperatureTopic, this.temperatureFeedbackTopic)
    }

    constructor(floor: string, room: string, item: string, label: string, hmId: number, windowContacts: MaxWindowContact[]) {
        super(floor, room, item, label, hmId)
        this.temperatureTopic = `${this.topicFirstPart}/temperature`
        this.temperatureFeedbackTopic = `${this.topicFirstPart}/temperature/feedback`
        this.deviceFeedbackTopic = `${this.deviceTopicPre}/1/SET_TEMPERATURE`
        this.actionTopic = `${this.actionTopicPre}/1/SET_TEMPERATURE`
        this.subscribeTopics = [
            this.temperatureTopic,
            this.deviceFeedbackTopic
        ]
        this.windowOpen = false
        this.windowContactMap = {}
        windowContacts.forEach((windowContact) => {
            this.subscribeTopics.push(windowContact.getStateFeedbackTopic())
            this.windowContactMap[windowContact.getStateFeedbackTopic()] = { windowContact: windowContact, state: 'unknown' }
        })
    }

    processMessage(topic: string, payload: string) : void {
        let setTemperature : boolean = false
        if (topic == this.temperatureTopic) {
            this.temperature = parseFloat(payload)
            setTemperature = true
        } else if (topic == this.deviceFeedbackTopic) {
            // this.temperature = parseFloat(payload)
            setTemperature = false
        } else if (topic in this.windowContactMap) {
            this.windowContactMap[topic].state = payload
            this.windowOpen = false
            Object.values(this.windowContactMap).forEach((w) => {
                if (w.state == 'OPEN') {
                    this.windowOpen = true
                }
            })
            setTemperature = true
        }

        if (setTemperature) {
           if (! this.windowOpen) {
                mqttHandler.send(this.temperatureFeedbackTopic, `${this.temperature}`)
                mqttHandler.send(this.actionTopic, `${this.temperature}`)
            } else {
                mqttHandler.send(this.temperatureFeedbackTopic, `${WINDOW_OPEN_TEMPERATURE}`)
                mqttHandler.send(this.actionTopic, `${WINDOW_OPEN_TEMPERATURE}`)
            }
        }
    }


}